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Dynamic switching from coherent perfect absorption to parametric amplification in a nonlinear spoof plasmonic waveguide - Nature Communications
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Coherent perfect absorption (CPA) and amplification of electromagnetic waves are converse phenomena, where incoming radiations are coherently dissipated or amplified by structured incidences. Realizing such two phenomena simultaneously in a single device may benefit various applications such as biological sensing, photo detection, radar stealth, solar-thermal energy sharing, and wireless communications.
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